package service;

public class PriceServiceImpl implements PriceService {

	@Override
	public double price(int a, int b) {
		System.out.println("price execute ....");
		return a+b;
	}

	@Override
	public double youhui(int a, int b) {
		System.out.println("youhui execute ....");
		return a-b;
	}

}
